RM 8433 consists of 50 g of dry powder corn bran packaged in a glass bottle.

RM 8413 consists of approximately 47 g of dry powdered corn (Zea Mays) kernels packaged in a glass bottle.

RM 8412 consists of approximately 34 g of dry powdered corn (Zea mays) stalk packaged in a glass bottle sealed in a foil bag.

Reference Material (RM) 8432 is intended for use in evaluating analytical methods and instruments used for the determination of major, minor, and trace constituent elements, and proximates, total dietary fiber, and calories in corn starch and other similar food, agricultural, and biological materials.